Here is the whole article to read, but the bottom line is, San Jose is trying to become more walkable, and so the bikes need to be either in the bike lanes or the roads, but not on the sidewalk.

Now that what little safe downtown riding space is dwindling, this may be a good time to talk about how shitty bike infrastructure is here. Hopefully getting the bikes in the road will spur the development of even more downtown bike lanes. Yes please!